Toothbrush holder



FIG. 1 is a front and right side perspective view of a toothbrush holder showing my new design;

FIG. 2 is a rear and left side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof, the right side being a mirror image of that shown; and

FIG. 5 is a front elevational view thereof. 

The ornamental design for a toothbrush holder, as shown and described. 